574 filings
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DEFA14A
CLIR
ClearSign Technologies Corp
22 Apr 22
Additional proxy soliciting materials
9:02am
DEF 14A
CLIR
ClearSign Technologies Corp
Definitive proxy
22 Apr 22
9:00am
424B5
CLIR
ClearSign Technologies Corp
14 Apr 22
Prospectus supplement for primary offering
5:16pm
8-K
CLIR
ClearSign Technologies Corp
8 Apr 22
ClearSign Technologies Corporation Provides Full Year 2021 Update
9:20am
4
CLIR
ClearSign Technologies Corp
4 Apr 22
ClearSign Technologies / Bruce Alan Pate ownership change
6:30pm
4
Meline Susanne
4 Apr 22
ClearSign Technologies / Susanne Meline ownership change
6:29pm
4
Judith S Schrecker
4 Apr 22
ClearSign Technologies / Judith S Schrecker ownership change
6:28pm
4
HOFFMAN Robert Thurston Sr
4 Apr 22
ClearSign Technologies / Robert Thurston HOFFMAN Sr ownership change
6:28pm
10-K
2021 FY
CLIR
ClearSign Technologies Corp
Annual report
31 Mar 22
9:00am
4
CLIR
ClearSign Technologies Corp
9 Feb 22
ClearSign Technologies / Brent Hinds ownership change
5:31pm
4
Meline Susanne
5 Jan 22
ClearSign Technologies / Susanne Meline ownership change
9:41pm
4
HOFFMAN Robert Thurston Sr
5 Jan 22
ClearSign Technologies / Robert Thurston HOFFMAN Sr ownership change
9:41pm
4
CLIR
ClearSign Technologies Corp
5 Jan 22
ClearSign Technologies / Judith S Schrecker ownership change
9:41pm
4
CLIR
ClearSign Technologies Corp
5 Jan 22
ClearSign Technologies / Bruce Alan Pate ownership change
9:40pm
UPLOAD
CLIR
ClearSign Technologies Corp
5 Jan 22
Letter from SEC
12:00am
10-Q/A
2021 Q2
CLIR
ClearSign Technologies Corp
23 Dec 21
Quarterly report (amended)
4:30pm
CORRESP
CLIR
ClearSign Technologies Corp
23 Dec 21
Correspondence with SEC
12:00am
UPLOAD
CLIR
ClearSign Technologies Corp
16 Dec 21
Letter from SEC
12:00am
8-K
CLIR
ClearSign Technologies Corp
29 Nov 21
ClearSign Technologies Corporation Provides Third Quarter 2021 Update
4:31pm